Buy back crabs at home to raise live methods are as follows:
1, water pots to raise
If you buy crabs are bundled, then the preservation of the time you have to unbundle the crabs, and then put them into the pot. Be careful not to cascade, then add water to the position of the crab's mouth can be, if the water is too deep the crab will lack of oxygen suffocation and die. Then put the crabs in a ventilated cool place, plastic pots or buckets high enough do not need to cover with a lid.
At night, pour half the amount of water out of the pot, then refill it with half the amount of water, and repeat this every night.
By the fourth day, feed the crabs a small amount of crushed ham hock, small fish or shrimp skin. When temperatures are not too high, this method of preservation usually lasts over 5 days or more. Also, it is still necessary to check the crabs daily and eat any that are not vigorous enough.
2, bathtub raising
If you can't eat them all within a week, you can't use the above method. At this time, your unused bathtub can come in handy, the bathtub space is large enough, and the four walls are smooth, the crab can not escape.
Put fresh crabs gently into the inside, injected just over the crab water, let it stand up when you can breathe, and according to the need to save time in the water into a small number of small fish, shrimp. Crabs kept alive in this way can last more than 7 days or longer, and the survival rate of good quality crab storage can reach more than 95%.